I was looking for a tool to brute forcing a password that use HMAC-SHA256.
My first thought was "hashcat", which easily supports HMAC-SHA256 but there is a problem: it does not support more than 256 characters as "message".
My message is more than 7000 characters long. Exists a patch or other software similar to hashcat ?
Now I use python for brute force but it is definitely slow ...